Well the department is switching our rifles to the AR platform, and of course due to all the buying frenzy, I can't find any mags in stock. Now I figure I'd just wait till the buying frenzy is over, but if anyone has any info that'd be great. I have about 2 months before the switch.

Adamson Police Products in Los Alamitos. They also have pretty good prices. I think the Magpul 30 round mags are $14.95 each. It shows them out of stock online, but their stores might have them. Bring your Badge/ID to get in. They have two other California locations, so check out their website.

Botach is the only game in town, I think. They had crates of AR mags last time I went. Pro Force doesn't have nearly close the inventory of Botach. But I recommend you go in person if possible to Botach and you need an ID.